Troubleshooting of one of the most popular mistakes of newbie Blynk users.

Also, using the serial connection isn’t a viable solution for a long term project. You might be better using a an ESP8266 based device such as a NodeMCU, although it depends on who you’re driving your servos.

I thought I’d write a piece about my thoughts on the best hardware to use for your IoT projects if you’re just starting-out with Blynk.
I did what many people do, started-off buying an Arduino Uno and uploaded some code to make it flash an LED. After about 10 seconds of watching the LED flash I was bored, and wanted to do more (I have a short attention span ).
The next task was getting the Uno connected to the internet and I chose the Ethernet Shield route. After around 6 months of m…

You’re unlikely to find anyone on this forum who will re-write your code for you, and you need to learn yourself anyway.